Integrated-motor actuatorLegacy
Exlar Tritex TDX (Tritex II DC linear actuator)
Low-voltage DC version of the Tritex integrated drive, motor and roller-screw actuator in 60 and 75 mm frames; Curtiss-Wright now lists it as a legacy product.
Exlar lists this series as legacy. We can help with spares for installed machines, a migration to the replacement, or an alternative.
Key specifications
| Ingress protection | IP66S |
|---|---|
| Temperature | -20–65 °C |
| Force (max) | 5,293 N |
| Continuous force | 3,879 N |
| Stroke (max) | 457 mm |
| Linear speed (max) | 847 mm/s |
| Screw lead | 2.54, 5.08, 10.16 (TDX060) / 2.54, 5.08, 12.7 (TDX075) |
| Screw type | roller screw |
| Supply | 12-48 Vdc |
| Sizes | TDX060 (60 mm): up to 528 lbf (2,349 N) cont / 666 lbf (2,962 N) peak; strokes 76-305 mm; up to 847 mm/s, TDX075 (75 mm): up to 872 lbf (3,879 N) cont / 1,190 lbf (5,293 N) peak; strokes 76-457 mm; up to 635 mm/s |
Summarised in our own words from Curtiss-Wright Actuation Group's published data; series maxima, individual models vary. Last checked 2026-10-29. Source 1 · Source 2
Notes on this data
Per-lead forces published in lbf only; converted at 1 lbf = 4.448 N (872 lbf = 3,879 N; 1,190 lbf = 5,293 N; 528 lbf = 2,349 N; 666 lbf = 2,962 N). Strokes in inches converted at 25.4 mm/in (18 in = 457 mm). Leads 0.1/0.2/0.4/0.5 in converted. Page states legacy, no longer available; no named replacement. Page conflicts: overview says '3879 kN' / '5293 kN' (unit typo, should be N); overview temp -40 to +65 C vs spec table -20 to 65 C (-40 on request); speed 800 vs 847 mm/s. Applications not specifically listed; entry is generic.
Specify Motion is not affiliated with Curtiss-Wright Actuation Group. Exlar and Tritex TDX (Tritex II DC linear actuator) are used only to identify the product. Comparisons use published figures; always confirm against the current datasheet.
Typical applications
Alternatives that meet or exceed these figures
Engineers often come to us with an Exlar part number and leave with an alternative that is easier to source, quicker to deliver or a better fit for the machine. These 3 series from our supply network are the closest match on published figures.
Rod actuator with a built-in servo motor driving a ball or roller screw, in four sizes up to 30.6 kN, offered in white food-grade and black heavy-duty finishes.
| Published maximum | Tritex TDX (Tritex II DC linear actuator) | IMA Integrated Motor Actuator |
|---|---|---|
| Force | 5,293 N | 30,600 N meets or exceeds |
| Stroke | 457 mm | 457 mm meets or exceeds |
| Speed | 847 mm/s | 1,334 mm/s meets or exceeds |
General-purpose electric rod actuator in six sizes with solid, bronze or ball screws and inline or reverse-parallel motor mounting; a broad pneumatic/hydraulic replacement workhorse.
| Published maximum | Tritex TDX (Tritex II DC linear actuator) | RSA-ST (standard thrust) |
|---|---|---|
| Force | 5,293 N | 17,917 N meets or exceeds |
| Stroke | 457 mm | 1,524 mm meets or exceeds |
| Speed | 847 mm/s | 3,124 mm/s meets or exceeds |
Heavy-duty version of the RSA rod actuator with roller-screw options, matched angular-contact bearings and larger motor mounts, reaching 58 kN on size 64.
| Published maximum | Tritex TDX (Tritex II DC linear actuator) | RSA-HT (high thrust) |
|---|---|---|
| Force | 5,293 N | 58,000 N meets or exceeds |
| Stroke | 457 mm | 1,524 mm meets or exceeds |
| Speed | 847 mm/s | 3,124 mm/s meets or exceeds |
Figures are the highest published for each series and are not always measured the same way. A higher figure is not automatically a better choice: mounting, duty cycle, feedback, connectors and approvals matter too. An engineer will check the fit against your application before recommending anything.
Other integrated-motor actuator series
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